For those who signed up in advance for Klingon Language Certification Program testing. If you're included, you will receive instructions as a Discord Direct Message.
This view of the calendar defaults to US Eastern Time (America/New_York).
Using MS Outlook or Google Calendar or a similar calendar program, you can subscribe to an .ics feed of the KLI Events Calendar with this link:
https://www.kli.org/events/list/?ical=1
This official feed does not include events that have already happened. It lists only upcoming events.